22
PART 9: CHECKS
Recheck Control Settings
Now that all the ceramic fuel effects are in position, the control operation must be fully
rechecked.
•
Make sure that the isolating valve at the inlet elbow is open and that the electrical
power supply is on (the indicator light should glow).
•
Press and hold in the “on” switch. Within two seconds, the Fan should start and the
indicator light should go out.
•
Release the “on” switch. The fan should continue to run.
•
Depress the control knob and turn anticlockwise partially towards the
“PILOT/IGN” position until some resistance is felt. Keep depressed at this
position to purge air from the system then, while keeping it depressed, turn fully to
the “PILOT/IGN” position. A spark should be generated at the pilot while turning.
The spark should ignite the pilot. Check that the pilot flame is visible.
•
When pilot ignition has been achieved, keep the control knob depressed for
approximately ten seconds to allow the thermocouple probe to warm up and then
release it. If the pilot does not remain alight, ensure that the pilot orifice is clear.
•
When the pilot is alight and stable, partially depress the knob and turn to “LOW”.
The pilot should then light the main burner at its low setting. There may be a delay
of up to four seconds between the pilot lighting and ignition of the gas at the main
burner. This is normal and is due to the time required to fill the main burner
compartment with sufficient gas for ignition.
•
When the burner is lit, partially depress the knob and gradually turn it anti-
clockwise. The burner flames should gradually increase until the knob reaches the
“HIGH” position.
•
Partially depress the control knob and turn back to “PILOT/IGN”. The main
burner flames should be extinguished but the pilot should remain alight.
•
Partially depress the control knob and turn to “OFF”. The pilot should be
extinguished.
•
Press the “off” switch to turn off the fan (the indicator light should glow).
Check for spillage
A spillage check must be made before leaving the installed appliance with the customer.
Make this check with the appliance fully installed with the ceramic fuel effects and front
surround in position.
•
Close all doors and windows in the room containing the appliance.
•
Turn on the fan
.
Light the appliance and turn the control knob to “HIGH”.
•
Leave the appliance on for five minutes.
•
Place the smoke match tube into the burner box below the hood (see figure 39).
•
The installation is satisfactory if the smoke is drawn into the appliance. If the
smoke is not drawn into the appliance the fan powered extraction system is not
operating correctly.
Do not allow the appliance to be used until the fault is
corrected.
•
If the above test is satisfactory, open all internal connecting doors, hatches, etc. in
the room. Keep all doors and windows that open to the outside of the building
closed. Recheck for spillage as above. If an extractor fan or other air circulating
system is installed in the same room as the appliance or a connecting room, check
that spillage does not occur with the fan operating and all doors and other
openings between the fan and the appliance open.
•
If the smoke is drawn into the appliance, continue with the installation. If the test is
not satisfactory,
Disconnect the appliance and seek expert advice.
•
If any other non-sealed gas appliances are installed in connecting rooms, check to
ensure that there is no spillage from these appliances when the Sonnet Powerflue is
operating with its fan on. Check these other appliances by the procedure supplied
by the manufacturer.
Fig. 39
